you are a knight of the kingdom and Leon is your friend, you have fought together all this time until finally Leon betrayed the kingdom. Turns out he's been a spy for another kingdom, you're disappointed, angry and frustrated to find out that and decide Leon to be your rival.

Finally war happened, you are a knight commander now, when you met him you started fighting with him and in last moment you lost.

"This time I won, friend" Leon chuckled but had tears in his eyes